Safety-razor.



F. A. FULLER.

SAFETY RAZOR.

nPPucATloN mxo Dac. 29. 191s.

1,197,364. Patentedsepf. 5,1916.

WITNESSES INVENTOI? gaaf .M QJ

A TTORNEYS UNITED STATES PATENT OFFICE.

l* FRANZ A. FULLER, 0F NEWARK, NEW JERSEY.

SAFETY-RAZOR.

Specification of Letters Patent.

Patented Sept. 5, 1916.

Application led December 29, 1913. Serial N o. 809,196.

same, reference being had to the accompanying drawings, and to numerals of reference marked thereon, .forming a part of this specification. f

This invention relates to safety razors in which a detachable razor blade of novel construction is designed to be readily and eiliciently secured to a device, in which a razor blade support is employed, which in general appearance resembles what is commonly known as a straight razor, and further providing the same with a guard for the exposed edge of the razor blade, the guard being so constructed that, if desired, it may be applied to one side or the other of the razor blade support, or if desired, it may be dispensed with entirely. v

An important feature of thel invention is y to so construct the razor blade support, and

its attached razor blade clamping means, that a razor blade of novel construction may be readily secured thereto or removed therefrom, thereby providing a device resembling an ordinary straight razor, in which a detachable blade is to be used, thusinsuring a sanitary shave, it being understood that a blade may be used once'and then discarded if desired.

With this end in view, my invention consists incertain novelties of construction, and arrangements of parts as hereinafter set forth and pointed out in the claims.

While the preferred forms of my invention are illustrated in the accompanying drawings, yet it is to be understood that minor detail changes may be made without departing from the scope thereof.

In the accompanying drawings, Figure 1 represents a side elevation of a razor embodying my invention. Fig. 2 represents a transverse section of the blade support, razor blade and razor clamping means, taken on lines of Fig. 1. Fig. 3 represents a 'fragmentary side elevation of the razor blade support, and the razor blade clamping means pivotally connected thereto. Figs. 4

and 5 represent respectively, side and end elevations of the razor blade. Fig. 6 represents a side elevation of a. razor embodying my invention, with a guard secured thereto. Fig. 7 represents a rear elevation of the guard. Figs. 8 and 9 represent respectively a perspective view of a fragment and a front elevation of the same; and Fig. 10 represents a modified form of razor blade support.

Similar numerals of reference refer to like parts throughout the specification and drawings.

In the drawings, l designates a casing of ordi-nary form to which the curved eXtrem-` ity of the shank 2 of the razor blade support 3 is pivoted at 4. The detachable razor blade 5 is made of sheet steel-and provided .with a substantially plane portion 6 along one longitudinal edge, said blade having a I single longitudinal Cutting edge 7 on the side opposite said plane portion 6, the blade 'intermediate said portion and said cutting edge, comprising a uniformly. concaved portion 8 on which the cutting edge is formed, and which lies entirely on one side of the central plane of said first-mentioned portion, and an odset portion 9 connecting said concaved portion with said first-mentioned portion.

The razor blade support 3 is preferably made in the form illustrated in cross-section -in Fig. 2 of the drawings, and provided with a shoulder 10, so that a razor blade as of the channel-shaped clamping element 11, one end of which is pivotally secured to the shank of the razor blade support as at 12. The channel-shaped clamping element 11 at one end thereof, as at 14 is closed, -which closed end, together with the shoulder 10 on the razor blade support 3, provides means to prevent longitudinal displacement of the razor blade, at the same time securely locking the blade to the blade holder.

, My invention, so far described, is designed to perform the same functions as the hollow-ground straight razor, so commonly used. In order that the device may be employed as a safety razor, I provide a detachable guard plate designed t0 be applied to one side or the other of the razor blade support. The razor blade guard consists essentially of three elements, namely, vthe guard plate 15 which is slidably secured to a channel-shaped support 16, said support being designed to have sliding engagement with the clamping element 11, and a Hat spring 17 secured to the inside of the channel shaped support 16 and designed to have frictional engagement with the top of the clamping element 11 and by means of' which the guard is securely clamped to the razor blade support 3 and the razor blade 5. The guard plate 15 is constructed to grip the blade 5 at the fro-nt corners, the sharpened edge of the blade resting upon the bent-over end of the guard plate 15, which is provided with the usual perforations 18, the free end of which is bent downwardly and which is sufficiently in advance of the end of the blade to afford the necessary protection against accidental cutting. The ends of the guard plate 15 are provided with upwardly extendlng stops 19 for engagement with the l corners of the cutting edge of the blade 5,

to prevent said cutting edge from projecting too far beyond the guard 15 to at all times maintain the cutting edge of the razor blade in the proper and adjusted position relative to the guard teeth. yThese stops 19 may, for convenience sake, be formed integral with the guard plate 15 or secured f thereto in any convenient manner. As illustrated in Fig. 8 of the drawings, the guard plate has approximately the shape of the razor blade.

Secured to the guard plate 15 are pins or studs 20 designed to engage with the angularly-arranged elongated slots 21 formed in one side of the channel-shaped support 16, which is slidably secured to the guard plate 15, as clearly illustrated in Fig. 9 of the' drawings, so that when the channel-shaped -support 16 is in the position relative tothe guard plate 15, as illustrated in said figure, the cutting edge of the razor blade is brought into engagement with the stops 19 of the guard plate, and the channel-shaped support 16 is moved in the direction indicated by the arrow in Fig. 6 of the drawings, thereby securing the guard to the razor blade support and blade. The channel-shaped support 16 is of such dimensions and configuration asto t over and have sliding engagement with the clamping element 11. Located within said support and extending the entire length thereof, is a flat spring l venient manner, a headed stud 23 extending through the topof the support and which 'at all times maintains the spring in its proper position, said spring, together with the support 16, servlng to maintain the guard in its adjusted position.

to which is secured in any con-4 24 represent studs of any convenient form, secured to the ends of the support 16 to enable said support to be moved relative to the guard plate.

In Fig. 10 of the drawings, I have shown a modilied form of a razor blade support 25, designed to support a flat razor blade 26 and which consists in providing the razor blade support 25 with an additional remova ble clamping plate 27 of approximately the same shape as that portion of the razor blade support 25 to which the plate'is secured, which clamping plate 27 is secured to the razor blade support 25 by means of studs 28, which are secured to the support 25 and which pass through suitable apertures in the razor blade 26 and designed to enter suitable apertures in the detachable clamping plate 27, all of which are held together by the clamping element 11, in sube' stantially the same manner as heretofore de-v scribed.

Although I have illustrated the preferred form of my invention, I do not4 care to be limited to the exact details ofv construction as Shown and described, as obvious modifition along one longitudinal edge, and an voliset portion connecting said concaved portion with the plane portion, a detachable concaved razor blade mountedon one side of said support, and clamping means pivotlally lsecured near one end of said support for securely clamping the blade to the said said razor blade support.- t

2. A razor, comprising a razor blade support provided with shoulders near one end thereof and transversely concaved onboth sides, and further provided with a substan- 10o plane portion of thelongitudinal edge of 1 tially plane portion along one longitudinal edge, andan offset portion connecting said concaved portion with the plane pomrtion, a detachable'concaved razor blade mounted on one side of said support.l and channelshaped clamping means pivotally secured near one end of said support for securely v clamping the blade to the said plane por-- tion of the longitudinal edge of said razor blade support.

This specification signed and witnessed this 27th day of December, 191.3.

FRANZ A. FULLER. Witnesses: r

FREDK C. FISCHER, W. H. CONKLIN. 

